NEC ELECTRA ELITE IPK II, Features And Specifications Manual

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Electra Elite IPK II Document Revision 1
IP Trunk - (SIP) Session Initiation Protocol 2 - 487
IP Trunk - (SIP) Session Initiation Protocol
Description
The Electra Elite IPK II Voice over IP Trunk Card SIP package sends the real time voice over the
corporate LAN or WAN. The voice from the telephone is digitized and then put into frames to be sent
over a network using Internet protocol.
Using VoIP equipment at a gateway (a network point that acts as an entrance to another network), the
packetized voice transmissions from users within the company are received and routed to other parts of
the company’s intranet (local area or wide area network) or they can be sent over the Internet using CO
lines to another gateway.
The IAD (8)-U10 ETU - SIP is an optional interface that can provide IP trunks and tie lines. It can
operate in the following modes:
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COI
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COID
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DID
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TLI
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DTI
Depending on the requirements and resource allocation in the LAN/WAN/Internet, the IAD (8)-U10 ETU
- SIP can be configured to use any of the following voice compressions:
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G.711 Mu Law – Highest Bandwidth
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G.723 – Lowest Bandwidth
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G.729 (a) – Most often used
The IAD (8)-U10 ETU - SIP can be assigned in any of the following configurations:
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A 2-port TLI(2)-U10 ETU
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A 4-port DID(4)/COI(4)/COID(4)-U10 ETU
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An 8-port COI(8)/COID(8)-U10 ETU
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A DTI ETU using eight channels that can be installed in interface slots supporting these ETUs
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The LAN/WAN or Internet connection is provided by a 10/100 Base T Ethernet
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The ETU operating mode can be configured per ETU, but not per port